baber/WOPTO huggingface dataset:
Patent GB-203771-A (GB)
Title: Improvements in and relating to control mechanism for electric motors and other apparatus
IPC: H02P7/06
Filed: 1922-06-12
Abstract: 203,771. British Thomson-Houston Co., Ltd., and Given, R. D. June 12, 1922. Regulation, automatic systems and apparatus for. - The controlling coil of an automatic regulator is in a circuit 5, 6 fed by a small generator 2 excited by self-exciting generator 1, both machines being driven by a motor-shaft 3. The regulator is employed to keep the speed of the motor constant.
Patent GB-1422255-A (GB)
Title: Howling insulator
IPC: G10K11/00
Filed: 1973-04-05
Abstract: 1422255 Vibration dampers KURAISURA DENKI KK 5 April 1973 16280/73 Heading F2S  A vibration damper comprises a spherical member 15 with an outer layer 15a or 15b of elastic material accommodating vibration absorbing material 15c; and supporting means 16, comprising two elements 17, 18, adjustable towards and away from each other, the upper element 17 being provided with an opening 19 into which the spherical member 15 can deform an application of a force urging it against the support 16. The spherical member 15 may be gas-filled or moulded from a skin-forming plastics foam. The two sections may be connected by a screwthread 27 for height adjustment (Fig. 3) or may have threads of opposite hand 37, 38, connected by a third member 39 for height adjustment, Fig. 7 (not shown). Fig. 2 (not shown) illustrates the damper in use with sound reproducing equipment to prevent acoustic feed-back.
Patent GB-195580-A (GB)
Title: Improvements in galvanic cells
IPC: H01M6/04
Filed: 1922-06-12
Abstract: 195,580. Nyberg, H. D. March 28, 1922, [Convention date]. Electrolytes; air or gases supplied.-A cell is provided with an electrolyte consisting of a solution of the hydroxide of one or more alkali metals or of ammonium, the, concentration being such that it remains practically unaltered during the working of the cell. This value of the concentration is less than or nearly equal to the concentration at which the solution has a maximum capacity for dissolving the hydroxide of the metal forming the positive electrode, such as zinc. Salts, such as sodium chloride, capable of precipitating the hydroxide of the metal of the positive electrode may also be added to the electrolyte. In an example, carbon and zinc electrodes are immersed in a solution of 90 grams of sodium hydroxide dissolved in a litre of water. In another example the electrolyte contains 50 grams of sodium hydroxide and 200 grams of sodium chloride per litre. The carbon electrode may constitute the containing vessel for the other elements of the cell as described in Specification 203,067, depolarization being effected by the air, and the zinc being in the form of a grating, or the carbon may be placed centrally within the cell. The carbon is such that it is penetrated by the electrolyte to a certain depth only, the part of the carbon which is exposed to the air being impenetrable, as described in the Specification above referred to. Carbonic acid gas may be removed from the air used for depolarization or it may be allowed to combine with the precipitate formed by the consumption of the zinc electrode. The Specification as open to inspection under Sect. 91 (3) (a) states that the electrolyte may be used in a semi-liquid state and may contain a soluble substance to bind carbonic acid : also that the electrolyte may be heated to recover the metal hydroxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-1222807-A (GB)
Title: Process for recovery of uranium values
IPC: C01G43/00
Filed: 1969-03-28
Abstract: 1,222,807. Ammonium diuranate. WESTINGHOUSE ELECTRIC CORP. 28 March, 1969 [4 April, 1968; 4 March, 1969], No. 16331/69. Heading C1A. Uranium is recovered as ammonium diuranate by adding to an aqueous solution containing uranyl fluoride and HF sufficient aqueous ammonium hydroxide to bring the pH of the mixture to 6À1 Œ 0.2 and when the formation of ammonium fluoride is complete then adding sufficient aqueous ammonium hydroxide of a normality less than 3N to precipitate ammonium diuranate. When the solution contains about 4 molcules of HF per mole of uranyl ion the ammonium hydroxide in the first step is added in an amount such that 3À5 moles of NH 4 OH are present in the mixture per mole of UO 2 <SP>2+</SP>. In the second addition 3 to 5 mols. of NH 4 OH per mol. UO 2 F 2  may be added.
Patent GB-488703-A (GB)
Title: Improvements in or relating to tobacco manipulating machines
IPC: A24C5/18
Filed: 1936-12-11
Abstract: 488,703. Tobacco-feeding mechanism. MOLINS, H. B., ISAACS, M. H., and RUAU, F. F. Dec. 11, 1936, No. 16392/38. Divided out of 488,657. [Class 130] In means for forming a continuous rod or filler of tobacco for making cigarettes or for packaging tobacco, wherein the tobacco is fed into a confining- passage and is compacted therein in the direction of travel, a wall of the confining-passage is mounted for movement towards and away from the opposing wall. The Figure shows the band 6 which receives tobacco from a hopper and feeds it beneath compression rollers 9, 10 and over a bridge piece 11 into a confining-passage formed between the band 6 and an upper member 16, which is provided with a plate or leaf spring 19 movable up and down to permit the tobacco to be fed through the passage more easily. In a modification, the upper member 16 is made in two parts, one of which is fixed and the other pivoted to move up and down. Specifications 440,182, 441,402, and 488,657 are referred to.
Patent GB-740278-A (GB)
Title: Improvements in or relating to hose, tube and like couplings
Inventor: SAMIRAN DAVID
IPC: F16L33/22
Filed: 1953-06-15
Abstract: 740,278. Pipe couplings. BOWSER, Inc. June 15, 1953, No. 16452/53. Class 99(1). A nipple 19, Fig. 6, comprising a tube 20 surrounded by a screw-threaded flange 21 thus providing a bore 33 to receive the end of a hose pipe 35, screws into a collar 1 having a bore 11 for the pipe, and one end of a spring 15 of opposite hand to that of the screw threads bears against a radial seat 9 in the collar whilst the other end bears against a radial seat 29 adjacent a conical seat 31 on the flange, so that as the collar is screwed on, the relative rotation between the ends of the spring will cause it to constrict radially to press the hose against the tube 20 and one end of the spring to enter the conical seat. To improve the seal, the tube 20 may have grooves 19<SP>1</SP> into which the spring forces the hose. The ends of the spring may extend tangentially and be ground even with the outside diameter of the spring, and the last two threads 25 on the nipple may be enlarged so that while the collar can be forced over these threads by using a wrench, it cannot be unscrewed by hand. Fig. 7 shows a modification to receive a thin-walled rigid tube 41. The tube 20 has a single groove 19<SP>1</SP> and is curved at 45, and the nipple is made up of an inner steel part 51 and an outer aluminium part 49. The last coil of the spring is forced inwardly so as to deform the tube 41 inwardly. In Fig. 9 (not shown), an 0-ring of rubber is interposed between the conical seat of the nipple and the end of the spring, and the outer periphery of the final turn of the spring which contacts the seat 31 is roughened or provided with nicks to hold the end of the spring from turning while the collar is being unscrewed.
Patent GB-659872-A (GB)
Title: Improvements relating to automatic drilling mechanisms
Inventor: ADCOCK HORACE RAY
IPC: B23B39/08
Filed: 1949-06-22
Abstract: 659,872. Drilling units for automatic lathes. WICKMAN, Ltd., A. C. June 22, 1949, No. 16545. [Class 83 (iii)] A drilling unit adapted to be mounted on the main feed-slide g of a lathe or other machinetool, particularly of an automatic multiplespindle lathe, comprises a drill slide a reciprocable on the main slide g by a crank mechanism r, q and automatic means for controlling a clutch n in the crank driving mechanism so that the drill is intermittently withdrawn from the work-piece to assist in the removal of swarf. The main feed slide g moves on ways 16 and carries a pair of rods e on which the drill slide a is reciprocable by the connecting-rod r and the crank disc q, the disc being intermittently connected by the clutch n to a gear drive from a spindle d splined to the spindle for the chuck c. The connecting-rod is indirectly connected to the drill slide by a spring-loaded bell-crank lever which is pivoted on the slide and carries a notched disc w bearing against an abutment x on the slide and rotatable by a ratchet 3 and a pawl 4 on the connecting-rod. While the drill is cutting, the clutch n is held disengaged by a lever 7 having a projection 8 engaged in a cam groove 9 around one half of the periphery of the clutch but when a pawl 12 on the clutch lever strikes one of the teeth 14 on a tappet 15 secured to the ways 16, the projection is withdrawn and the clutch is engaged by the spring o. The crank disc then withdraws the drill and moves the pawl into position for actuating the disc w, while the pawl 12 is held clear of the tappet teeth by a projection 11 engaging a cam surface 10 on the clutch. The disc w is advanced by one notch as the drill is returned, until the projection 8 falls back into the groove 9 and the clutch is disengaged. On each half of the periphery of the disc w, the series of notches progressively decrease in depth by the distance moved by the main slide g during withdrawal and return of the drill so that when a succeeding notch engages the abutment x, the drill slide has been moved back on the rods e to nullify this amount of continuous feed, the movement being permitted by the spring-loaded lever s. Drilling then proceeds until the pawl 12 strikes the next tooth 14 when withdrawal of the drill begins again. After completion of the hole, the main slide returns to its initial position and to bring the second set of notches on the other half of the disc w into operation, an additional tooth 17 is provided on the tappet 15.
Patent GB-726898-A (GB)
Title: Improvements relating to shock absorbers or vibration dampers
IPC: F16F9/088
Filed: 1951-07-14
Abstract: 726,898. Hydraulic shock absorbers. WASDELL, W. K. July 4, 1952 [July 14, 1951], No. 16749/51. Class 108 (3). In a direct - acting shock absorber which incorporates a flexible gas container 16 which functions to compensate for changes in volume of the working liquid due to changes in temperature, and changes in volume of the working chambers of the shock absorber due to the entry and withdrawal of the piston rod 15a, the chamber 17 in the shock absorber for the reception of the container 16 is constructed in two complementary parts 18, 19. The piston 15 of the shock absorber comprises one or more ports 15d controlled by a flap valve 25 having four spaced orifices 25a which register with an annular channel 15b in the piston. A port or ports 15c connect the channel 15b with the underside of the piston and are controlled by a flap valve 26. A sealing ring 21 for the piston rod 15a is loaded by springs 23 which abut a plate 24. The plate 24 is retained by a shoulder 14e in the bore of the cylinder 14, but may be lifted off the shoulder by pressure in the cylinder 14 to increase the load on the sealing ring 21. The chamber 17 is formed by a member 18 having a hemispherical lower surface, and a threaded closure member 19 having a corresponding hemispherical surface. A port 18c in the member 18 connects the chamber 17 with main cylinder space. In a modification (Fig. 12, not shown), the port 18c is replaced by a central continuously-open port, and diametrically-opposed ports covered by a flap valve which controls flow from the chamber 17 to the cylinder, and prevents flow in the opposite direction. The damping medium may be a solution of synthetic uncured rubber in mineral oil.
Patent GB-620310-A (GB)
Title: Improvements in and relating to folding step ladders
IPC: E06C1/387
Filed: 1946-06-04
Abstract: 620,310. Step ladders. AIRPORTS, Ltd., and DESOUTTER, A. M. June 4, 1946, No. 16931. [Class 20(ii)] A folding step ladder has one set of legs 10 formed of channel or hollow section whereby when the ladder is folded the legs 11 of the other set lie within the channels or hollows in the legs 10, a series of onepiece steps 14 being provided which extend between the front legs 10, the opposite ends of the steps being pivoted to the inner faces of the legs to permit the steps to be turned from their operative position into a plane along and across the front legs 10. The steps 14 may differ in depth and their pivoting means may comprise transverse tubular stays between the legs. The rear ends of the steps are pivotally connected by the base 17 arranged parallel to the front legs and disposed so that, when the ladder is collapsed, they fit betwen the steps and the front legs. A notch in a rear extension of the top step 14a hooks over a transverse bar 19 joining the back legs, and the step may be clamped in that position, or alternatively, an extension from the step may engage a catch on a back leg. Weight on the lower steps is thus transmitted to the legs through the tie bars 17. An extension 20 may be attached to one or more of the legs to act as a handhold, and may be telescopic, folding, or clipped to the side for removal when the ladder is collapsed. The outward movement of the back legs is limited by a slotted link 21a, or alternatively by chains or the like between the lower parts of the legs. Wheels or rollers may be fitted at the bottom of one or more of the legs, mounted on levers to move them to an inoperative position and so disposed that they do not project when the ladder is collapsed.
Patent GB-778096-A (GB)
Title: Antacid preparation
IPC: A61K33/08
Filed: 1955-06-13
Abstract: An antacid centerfill for a sandwich cookie containing as essential ingredients 10 to 30 per cent by weight of aluminium hydroxide and 1 to 9 per cent of magnesium oxide is prepared by blending shortening with the antacids at 95 DEG -100 DEG F., cooling the blend to room temperature for 10 to 30 hours, heating to 95 DEG -100 DEG F. and blending in sugar, flavouring and colour.  The base cakes may be prepared according to conventional recipes.  In an example a centerfill is prepared from shortening, sugar, aluminium hydroxide, magnesium oxide, lemon flavouring and colouring.
Patent GB-1326293-A (GB)
Title: Method for comparing masks
IPC: G03F7/20
Filed: 1971-05-26
Abstract: 1326293 Composite photographs INTERNATIONAL BUSINESS MACHINES CORP 26 May 1971 [18 June 1970] 17106/71 Heading G2C The patterns in a pair of semi-conductor processing masks each having portions transparent to light and portions opaque to light and intended to be used in registering positions wherein a portion of one mask when positioned is to be located within the area occupied by a larger portion of the other mask when positioned, are compared by forming a composite photographic image consisting of the images in register of the separate masks, the composite image having three tones of which a first tone corresponds to the overlap of the images corresponding to the said portion of the one mask and the larger portion of the other mask, a second tone corresponds to the image of that part of the larger portion surrounding the overlapping portions, and the third tone corresponds to the image of that part of the second mask surrounding the larger portion thereof. Preferably the opaque portions of one mask are rendered semi-transparent and the composite photograph is formed by exposing both masks simultaneously. Alternatively sequential exposures may be used.
Patent GB-1398378-A (GB)
Title: Electrowinning of metal
IPC: C25C7/02
Filed: 1974-04-18
Abstract: 1398378 Electrowinning metal; electrode DIAMOND SHAMROCK CORP 18 April 1974 [19 April 1973] 17108/74 Heading C7B A metal, e.g. Cu, Zn, Co, Fe, Ni, Mn, Cd, or Cr, is electrowon from an aqueous acidic solution of such metal, e.g. the liquor obtained by leaching ore concentrate with H 2 SO 4 , using a cathode, e.g. of the metal to be won (for Cu) or Al (for Zn or Cd electrowinning), and an opposed anode comprising a conductive substrate, e.g. of Ti, Ta, Nb or Zr throughout or covering a core of Cu or Al, bearing on at least a portion of its surface a mixed oxide coating comprising by weight 30 to 90% SnO 2 , 1 to 10% Sb 2  O 3 , 1 to 50% at least one Pt group metal oxide (preferably RuO 2  + IrO 2  or RhO 2 ) and 0.5 to 30% TiO 2  or Ta 2  O 3 , the mole ratio of SnO 2  to Sb 2 O 3  being 95:5 to 85:15. The cell may be of PVC lined concrete and contain a diaphragm for electrowinning Cr or Mn. The substrate may be in the form of rods or imperforate or foraminous sheet. Intermediate layers may be on the substrate.
Patent GB-273493-A (GB)
Title: A method of producing benzene by reaction between phenolic vapours and a reducing gas
IPC: C07C1/22
Filed: 1926-07-08
Abstract: 273,493. Irinyi, A. July 8, 1926. Benzene. - The reaction between gaseous phenol and a reducing gas at a high temperature, e.g. hydrogen at 750‹ C., for the production of benzene, is effected by heating the gaseous phenol and the reaction gas separately to the required temperature, and then bringing them together in the reaction chamber. In the apparatus shown, phenol from a reservoir 2 is vaporized in a vessel 4, heated in a vessel 5 to a temperature somewhat higher than that required for the reaction, mixed with cool vapour supplied by a valve-controlled pipe. 7 in a chamber 6, and passed at the required temperature, checked by recording-means 9 into a compartment 21 of the reaction chamber 1. The reaction gas from vessel 3 is similarly heated in a vessel 11, mixed with cool gas. supplied from a valve-controlled pipe 13, in a chamber 12, and passed at a temperature checked by recording-means 14 either to the compartment 21 or, preferably, as shown, through a heat-exchanging coil 10 in the chamber 1, a second heating and mixing system 16 - - 19 similar to that 11-13, and finally, at a temperature checked by recording-means 20, into the compartment 21 to react with the gaseous phenol. The benzene is removed by a conduit 22.
Patent GB-530009-A (GB)
Title: Improvements in method of and apparatus for continuously and automatically separating the solid constituents from the liquid constituents of a cyanided ore pulp, and forseparating the precipitates from cyanide solutions
IPC: C22B11/08
Filed: 1939-06-13
Abstract: 530,009. Centrifugal machines. JEFFERY, A. E., and NEVILLE. J. A. June 13, 1939, No- 17225. Convention date, Feb. 3. [Class 23] During the recovery of gold and silver from cyanided ore pulp, the pulp is fed continuously to centrifugal strainer drums mounted at the periphery of a rapidly rotating spider and also rotating about their own axes at a speed lower than that of the spider. The pregnant solution is thrown through the drums and attached filtering medium into launders on the casing, while the solids are discharged from the drums by means of helical vanes. Perforated drums 32 are mounted on spindles 29 supported in bearings carried by a spider 28. Filtering envelopes 35 are mounted on the drums 32 and are secured by bands 36, and launders 42, 42a, 42b are secured to the casing frame so that they receive liquid discharged from different portions of the drums. Each drum has a helical vane 34 mounted to assist the downward movements of solids which drop from the drum to the hopper 37 and discharge shoot 38. The material is fed to annular troughs 40 and is conveyed by ducts 41 into the drums 32. The separated solids may be conducted by the shoot 38 to an agitator and centifuge for further treatment, and the liquids pass from the launders to a clarifier or another centrifugal strainer with a fine filtering medium; from this the liquids pass to a de-aerator and a zinc dust precipitator. As the solids pass through a drum 32 they may be treated further with barren cynanide solution or water. In a modification the drums 32 and spindles 29 are mounted at an angle to the vertical and the helical vanes 34 are omitted.
Patent GB-104330-A (GB)
Title: Improvements in and relating to the Treatment of Hydrocarbons for the Production of other Hydrocarbons of Different Specific Gravity and Boiling Point.
Inventor: CHERRY LOUIS BOND
IPC: C10G15/00
Filed: 1916-12-01
Abstract: 104,330. Cherry, L. B. Feb. 21, 1916, [Convention date]. Mineral oils. -- Paraffin and other liquid hydrocarbons are transformed into gasolene and other lowboiling hydrocarbons by subjecting them in the form of vapour to a high-frequency silent electric discharge. The hydrocarbon vapour may be mixed with hydrogen or a hydrogen-carrying gas or compound, such as methane, natural gas, or a volatile hydrocarbon liquid. The apparatus consists of a still 1 fitted with an electrical chamber 4, through which the vapours pass to a condenser 5. Hydrogen &c. may bo admitted through a perforated pipe 7. The electrical chamber 4 consists of a tube 8 acting as one electrode and a central rod 10 serving as the other electrode. The electrodes are connected to the secondary of an oscillation transformer 21. The primary of the transformer 21 is connected to the secondary of a transformer 18, a spark-gap 20 and a variable capacity 19 being included in the circuit. The primary of the transformer 18 receives an alternating current from a circuit comprising an adjustable inductive resistance 17. A frequency of upwards of 1,000,000 per sec., and, where the electrodes are not less than 2 in. apart, a voltage of upwards of 5000, are employed. The higher the frequency the lower is the boiling-point of the product.
Patent GB-1282409-A (GB)
Title: A method of preparing deep-fried potato products
IPC: A23L19/12
Filed: 1971-05-26
Abstract: 1282409 Deep-fried potato products ELECTRO-FOOD AB 26 May 1971 [28 May 1970] 17319/71 Heading A2E In the preparation of deep-fried potato products wherein prior to deep-frying the potatoes are subjected to pretreatment including heating in water, the potatoes are heated in the pretreatment by passing electric current directly through the water by means of electrodes immersed in the water. The potential is preferably 0.2-20 v/mm, and the potatoes may be heated to sterilisation temperatures.
Patent GB-563903-A (GB)
Title: Improvements relating to railway switch operating apparatus
IPC: B61L5/04
Filed: 1942-12-07
Abstract: 563,903. Operating railway points. TOMLINSON, A. V. (Union Switch & Signal Co.). Dec. 7, 1942, No. 17375. [Class 104 (i)] In a railway switch operated by the usual mechanism 5 ... 10 and spring connecting rod C, a combined biassing and buffing device D controls the movement of the points when moved from one extreme position to the other, and also after being trailed through. This device comprises a shaft 24 in housing D connected by a crank 27 to the head rod 3 of the points. When the points are moved from the position of Fig. 1 to reverse, shaft 24 is turned clockwise and turns the spring toggle lever 29 ... 33, which resists the action of the spring rod C until it reaches the dead centre, after which it assists the rod to move the points to their reverse position. At the same time a toothed sector 29b on 24 actuates the rod 37 of a pair of pistons 40, 41 of dashpots 22, 23, the valves 58, 69 of which are kept open, during this movement, by cams 75 on a shaft 80 acting through rods 76 ... 79, so that the pistons do not resist the movement of the points. The shaft 80 is rotated by the rod C through a crank 83. If the points are trailed through, their return to their initial position is resisted by the pistons 40, 41, as the valves 58, 69 are closed and the fluid in the dashpots can escape from one side of the pistons to the other through narrow adjustable leak valves and passages in the dashpot cylinders, thus preventing slap return of the points.